CN219981016U - Ball top, vibrating diaphragm and loudspeaker - Google Patents
Ball top, vibrating diaphragm and loudspeaker Download PDFInfo
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- CN219981016U CN219981016U CN202320381155.9U CN202320381155U CN219981016U CN 219981016 U CN219981016 U CN 219981016U CN 202320381155 U CN202320381155 U CN 202320381155U CN 219981016 U CN219981016 U CN 219981016U
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- substrate layer
- dome
- layer
- heat dissipation
- diaphragm
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- 239000000758 substrate Substances 0.000 claims abstract description 114
- 230000017525 heat dissipation Effects 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims description 33
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910021389 graphene Inorganic materials 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 11
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 239000002131 composite material Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 239000003292 glue Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The utility model provides a dome, a vibrating diaphragm and a loudspeaker, wherein the dome adopts a composite structure, through holes are formed in a substrate layer, so that heat in a rear acoustic cavity is conveniently dissipated by the through holes, the heat dissipation efficiency is improved, meanwhile, the substrate layer is arranged on a heat dissipation layer with higher heat conduction coefficient, the heat conduction efficiency of the substrate layer is improved through the heat dissipation layer, and the dome is sealed. In addition, the through hole design of the substrate layer correspondingly reduces the quality of the vibration system, and is beneficial to improving the performance sensitivity of the sounding unit.
Description
Technical Field
The utility model relates to the technical field of electroacoustic technology, in particular to a dome, a vibrating diaphragm and a loudspeaker.
Background
The sound generating unit is a device for converting an electric signal into an acoustic signal, and generally comprises a magnetic circuit system, a vibration system and a support auxiliary system. When the sounding unit works, a voice coil in the vibration system generates a large amount of heat due to the fact that a sound current signal flows in the copper wire, and the voice coil is located in a rear sound cavity relatively sealed in the sounding unit, so that the heat generated by the voice coil is not easy to spread to the outside, and the overall temperature of the sounding unit is increased.
At present, in order to realize heat dissipation of a voice coil, heat generated by the voice coil is generally conducted to a front acoustic cavity capable of flowing with external air through a dome in a sound generating unit, so that the heat is dissipated outwards, and the heat is dissipated to the sound generating unit. However, in order to meet the performance requirement, the dome generally adopts a material with a low thermal conductivity, so that the heat conduction effect is poor, and the heat dissipation requirement of the voice coil cannot be met.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the utility model provides a dome, vibrating diaphragm and speaker can strengthen the heat conduction effect, promotes the heat dispersion of sound generating unit.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a dome comprises a heat dissipation layer and a substrate layer;
the substrate layer is provided with a through hole;
at least one substrate layer is arranged on the single-side surface or the double-side surface of the heat dissipation layer.
Further, the heat conductivity of the heat dissipation layer is greater than or equal to the heat conductivity of the substrate layer.
Further, the heat dissipation layer is a graphene material layer, a copper material layer or an aluminum material layer.
Further, the through hole is circular or polygonal in shape.
Further, the number of the through holes is multiple, and the through holes are uniformly distributed on the substrate layer.
In order to solve the technical problems, the utility model adopts another technical scheme that:
a vibrating diaphragm comprises a vibrating diaphragm body and the ball top, wherein the ball top is arranged on one side of the vibrating diaphragm body.
Further, the vibrating diaphragm body comprises a fixing portion, the fixing portion comprises an inner fixing portion, the inner fixing portion is of a hollow structure, and the ball top is arranged on one side of the inner fixing portion.
Further, the substrate layer of the dome is disposed on one side of the heat dissipation layer of the dome, which is close to the inner fixing portion.
In order to solve the technical problems, the utility model adopts another technical scheme that:
a loudspeaker comprises a vibrating diaphragm, a voice coil and the ball top, wherein the ball top is arranged on the vibrating diaphragm, and the voice coil is arranged on one side of the vibrating diaphragm.
Further, the substrate layer of the dome is disposed on one side of the diaphragm, which is close to the voice coil.
The utility model has the beneficial effects that: the ball top adopts composite construction, through set up the through-hole at the substrate layer, the inside heat of back acoustic cavity of being convenient for is dispersed by the through-hole, improves radiating efficiency, sets up the substrate layer simultaneously on the higher radiating layer of coefficient of heat conductivity, improves the heat conduction efficiency of substrate layer and realizes ball top's seal through the radiating layer. In addition, the through hole design of the substrate layer correspondingly reduces the quality of the vibration system, and is beneficial to improving the performance sensitivity of the sounding unit.
Drawings
FIG. 1 is a schematic diagram of a single-sided single-substrate layer dome according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a single-sided single-substrate layer dome according to an embodiment of the present utility model;
FIG. 3 (a) is a top view of a single-sided single-substrate layer dome;
FIG. 3 (b) is a cross-sectional view of a single-sided single-substrate layer dome taken along the direction A-A in FIG. 3 (a);
FIG. 4 is a schematic diagram of a detail A structure of a single-sided single-substrate layer dome;
FIG. 5 is a schematic diagram of a single-sided dual-substrate layer dome according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of a detail A structure of a single-sided double-substrate layer ball top edge;
FIG. 7 is a schematic diagram of a substrate layer with square through holes according to an embodiment of the present utility model;
FIG. 8 is a schematic diagram of a dual-sided single-substrate layer dome according to an embodiment of the present utility model;
FIG. 9 (a) is a top view of a double sided single substrate layer dome;
FIG. 9 (b) is a cross-sectional view of a double-sided single substrate layer dome taken along the direction A-A in FIG. 9 (a);
FIG. 10 is a schematic view of a detail A structure of a double-sided single-substrate layer dome;
FIGS. 11 and 12 are schematic views of a detail A of another double-sided single-substrate layer dome;
fig. 13 and 14 are schematic structural diagrams of a diaphragm according to an embodiment of the present utility model;
fig. 15 and fig. 16 are schematic structural diagrams of a speaker according to an embodiment of the present utility model;
description of the reference numerals:
1. a dome; 11. a heat dissipation layer; 12. a substrate layer; 120. a through hole; 1201. a first substrate layer; 1202. a second substrate layer; 1203. a third substrate layer; 2. a vibrating diaphragm; 21. a diaphragm body; 211. a fixing part; 212. a ring folding part; 2111. an inner fixing part; 2112. an outer fixing part; 3. a speaker; 31. and a voice coil.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, an embodiment of the present utility model provides a dome, including a heat dissipation layer and a substrate layer;
the substrate layer is provided with a through hole;
at least one substrate layer is arranged on the single-side surface or the double-side surface of the heat dissipation layer.
From the above description, the beneficial effects of the utility model are as follows: the ball top adopts composite construction, through set up the through-hole at the substrate layer, the inside heat of back acoustic cavity of being convenient for is dispersed by the through-hole, improves radiating efficiency, sets up the substrate layer simultaneously on the higher radiating layer of coefficient of heat conductivity, improves the heat conduction efficiency of substrate layer and realizes ball top's seal through the radiating layer. In addition, the through hole design of the substrate layer correspondingly reduces the quality of the vibration system, and is beneficial to improving the performance sensitivity of the sounding unit.
Further, the heat conductivity of the heat dissipation layer is greater than or equal to the heat conductivity of the substrate layer.
As can be seen from the above description, the heat generated by the voice coil in the rear acoustic cavity can firstly expand the heat dissipation area through the heat dissipation layer in the dome to uniformly disperse the heat to each through hole of each substrate layer; after heat is conducted through the through holes of the substrate layer, the heat is rapidly dissipated to the front acoustic cavity through the heat dissipation layer. Both modes can improve the heat dissipation efficiency of the dome.
Further, the heat dissipation layer is a graphene material layer, a copper material layer or an aluminum material layer.
From the above description, the graphene, copper and aluminum materials have higher thermal conductivity and better thermal conductivity, which is more beneficial to heat dissipation.
Further, the through hole is circular or polygonal in shape.
It can be seen from the above description that the through holes can be designed in combination with other components in the device while satisfying the heat dissipation effect of the substrate layer, and the through holes with different shapes can be used for isolating the interference of other wave signals.
Further, the number of the through holes is multiple, and the through holes are uniformly distributed on the substrate layer.
As can be seen from the above description, the heat dissipation of the substrate layer is determined by the contact area between the substrate layer and the air and the flow rate of the air passing through the substrate layer, and the larger the number of the through holes, the larger the contact area between the substrate layer and the air and the faster the flow rate, thereby enhancing the heat dissipation.
Referring to fig. 13, another embodiment of the present utility model provides a diaphragm, including a diaphragm body and a dome as described above, where the dome is disposed on one side of the diaphragm body.
From the above description, the beneficial effects of the utility model are as follows: the ball top adopts composite construction, through set up the through-hole at the substrate layer, the inside heat of back acoustic cavity of being convenient for is dispersed by the through-hole, improves radiating efficiency, sets up the substrate layer simultaneously on the higher radiating layer of coefficient of heat conductivity, improves the heat conduction efficiency of substrate layer and realizes ball top's seal through the radiating layer. In addition, the through hole design of the substrate layer correspondingly reduces the quality of the vibration system, and is beneficial to improving the performance sensitivity of the sounding unit.
Further, the vibrating diaphragm body comprises a fixing portion, the fixing portion comprises an inner fixing portion, the inner fixing portion is of a hollow structure, and the ball top is arranged on one side of the inner fixing portion.
From the above description, the inner fixing portion of the diaphragm is configured as a hollow structure, so that the quality of the vibration system inside the speaker can be further reduced, and the performance sensitivity of the speaker is improved.
Further, the substrate layer of the dome is disposed on one side of the heat dissipation layer of the dome, which is close to the inner fixing portion.
From the above description, when the substrate layer is adhered to the inner fixing portion, the portion of the substrate layer where the through hole coincides with the inner fixing portion can be used as a glue containing groove, so as to enhance the fixing effect of the substrate layer and the inner fixing portion, and improve the reliability margin.
Referring to fig. 15, a speaker according to still another embodiment of the present utility model includes a diaphragm, a voice coil, and a dome as described above, where the dome is disposed on the diaphragm, and the voice coil is disposed on one side of the diaphragm.
From the above description, the beneficial effects of the utility model are as follows: the ball top adopts composite construction, through set up the through-hole at the substrate layer, the inside heat of back acoustic cavity of being convenient for is dispersed by the through-hole, improves radiating efficiency, sets up the substrate layer in the higher radiating layer of coefficient of heat conductivity simultaneously, improves the heat conduction efficiency of substrate layer and realizes ball top's seal through the radiating layer. In addition, the through hole design of the substrate layer reduces the quality of the vibration system and is beneficial to improving the performance sensitivity of the sounding unit.
Further, the substrate layer of the dome is disposed on one side of the diaphragm, which is close to the voice coil.
From the above description, the through hole design of the substrate layer can improve the fixing effect of the dome and the voice coil, and improve the reliability margin.
The dome, the vibrating diaphragm and the loudspeaker provided by the utility model can be used in electronic equipment needing sounding, and can promote the rapid heat dissipation of a sounding unit, and the following description is provided by a specific embodiment:
the first embodiment of the utility model is as follows:
a dome 1 includes a heat dissipation layer 11 and a substrate layer 12; the substrate layer 12 is provided with a through hole 120; at least one base material layer 12 is disposed on a single side surface of the heat dissipation layer 11.
Wherein the area of the base material layer 12 is the same as that of the heat dissipation layer 11, and the base material layer and the heat dissipation layer are mutually covered. The shapes of the substrate layer 12 and the heat dissipation layer 11 are designed according to the actual situation, and are not limited herein. Referring to fig. 1 to 4, when the base material layer 12 is disposed on a single side surface of the heat dissipation layer 11, the base material layer 12 may be disposed on a side of the heat dissipation layer 11 away from the voice coil 31 or on a side of the heat dissipation layer 11 close to the voice coil 31. The substrate layer 12 and the heat dissipation layer 11 can be adhered by a glue layer, so that the substrate layer 12 covered with the diaphragm fixing portion 211 or the through hole 120 near the voice coil 31 can be used as a glue containing groove to enhance the fixing effect of the dome 1 and the diaphragm fixing portion 211 or the voice coil 31.
In an alternative embodiment, the thickness of the substrate layer 12 and the heat dissipation layer 11 is less than 0.3mm; and the substrate layer 12 and the heat dissipation layer 11 need to satisfy the performances of light weight, high strength, and the like. Wherein the heat conductivity of the heat dissipation layer 11 is greater than 16W/mK.
Referring to fig. 5 to 6, the number of the substrate layers 12 is two, the first substrate layer 1201 and the second substrate layer 1202 are disposed on the side of the heat dissipation layer 11 near the voice coil 31, and the first substrate layer 1201 and the through holes 120 on the second substrate layer 1202 are disposed in one-to-one correspondence. The through holes in the two substrate layers 12 are oppositely arranged, so that the air flow rate at two sides of the radiating layer 11 is quickened, and heat towards the inside of the loudspeaker unit and the front cavity are only separated by the radiating layer 11, so that the heat transfer to the front cavity can be more facilitated, and the radiating efficiency is improved.
Specifically, the thermal conductivity of the heat dissipation layer 11 is greater than or equal to the thermal conductivity of the substrate layer 12, the heat dissipation layer 11 may be one of a graphene material layer, a copper material layer or an aluminum material layer, and the substrate layer 12 may also be the above material layer, so as to enhance the thermal conductivity.
Specifically, the through hole 120 is circular or polygonal. Referring to fig. 7, the through hole 120 is square in shape. In an alternative embodiment, the polygon is a hexagon, and the substrate layer 12 achieves the best electromagnetic shielding effect when the through-hole 120 is a hexagon in shape.
In an alternative embodiment, the diameter of the through hole is greater than 0.2mm. If the diameter of the through hole is too small, the production and the molding of the ball top are not facilitated.
The number of the through holes 120 is plural, and the through holes 120 are uniformly distributed on the substrate layer 12. Wherein the through holes 120 are uniformly distributed throughout the substrate layer 12.
The second embodiment of the utility model is as follows:
referring to fig. 8 to 10, a dome 1 is different from the first embodiment in that: at least one substrate layer 12 is disposed on the two side surfaces of the heat dissipation layer 11.
Referring to fig. 11, in an alternative embodiment, the number of the substrate layers 12 is three, the first substrate layer 1201 and the second substrate layer 1202 are disposed on a side of the heat dissipation layer 11 away from the voice coil 31, the third substrate layer 1203 is disposed on a side of the heat dissipation layer 11 close to the voice coil 31, and the through holes 120 between the adjacent substrate layers 12 are disposed in a one-to-one correspondence. Alternatively, referring to fig. 12, the first base material layer 1201 and the second base material layer 1202 are disposed on a side of the heat dissipation layer 11 close to the voice coil 31, and the third base material layer 1203 is disposed on a side of the heat dissipation layer 11 far from the voice coil 31;
wherein, the substrate layers 12 on two sides of the heat dissipation layer 11 can be matched by adopting different heat conduction materials so as to meet the adjustment of the related performance of the football top, thereby meeting the diversification of products. In addition, the substrate layer through holes 120 on both sides of the heat dissipation layer 11 can be used as glue grooves. In the embodiment shown in fig. 9, the through hole 120 on the second substrate layer 1202 is used for reinforcing the second substrate layer 1202 and the heat dissipation layer 11 and the first substrate layer 1201, the through hole 120 on the first substrate layer 1201 is used for reinforcing the first substrate layer 1201 and the voice coil 31, the internal fixing portion 2111 and the second substrate layer 1202, and the through hole 120 on the third substrate layer 1203 is used for reinforcing the third substrate layer 1203 and the heat dissipation layer 11. Similarly, in the embodiment shown in fig. 10, the through hole 120 on the first base material layer 1201 is used to reinforce the first base material layer 1201 and the second base material layer 1202, the through hole 120 on the second base material layer 1202 is used to reinforce the second base material layer 1202 and the heat dissipation layer 11 and the first base material layer 1201, and the through hole 120 on the third base material layer 1203 is used to reinforce the third base material layer 1203 and the voice coil 31, the internal fixing portion 2111 and the heat dissipation layer 11.
The third embodiment of the utility model is as follows:
referring to fig. 13 and 14, a diaphragm 2 includes a diaphragm body 21 and a dome 1 according to the first or second embodiment, where the dome 1 is disposed on one side of the diaphragm body 21. The diaphragm body 21 includes a fixing portion 211, the fixing portion 211 includes an internal fixing portion 2111, the internal fixing portion 2111 is in a hollow structure, and the dome 1 is disposed on one side of the internal fixing portion 2111.
In this embodiment, the diaphragm body 211 further includes a ring-folded portion 212, the fixing portion 211 further includes an outer fixing portion 2112, the inner fixing portion 2111 is disposed on the inner side of the ring-folded portion 212, the outer fixing portion 2112 is disposed on the outer side of the ring-folded portion 212, the middle portion of the inner fixing portion 2111 is in a hollow structure, and the dome 1 is disposed on one side of the inner fixing portion 2111. The external fixation 2112 is used to connect a support system for the speaker.
In an alternative embodiment, the substrate layer 12 of the dome 1 is disposed on a side of the heat dissipation layer 11 of the dome 1 near the inner fixing portion 2111, where the through hole 120 of the substrate layer 12 covering the inner fixing portion 2111 may be used as a glue receiving groove, so as to enhance the fixing effect of the dome 1 and the inner fixing portion 2111; the through hole 120 of the base material layer 12 covering the voice coil 31 may also be used as a glue containing groove, so as to enhance the fixing effect of the dome 1 and the voice coil 31, thereby improving the reliability of the dome. In an alternative embodiment, the substrate layer 12 of the dome 1 may also be disposed on a side of the heat dissipation layer 11 of the dome 1 remote from the inner fixing portion 2111.
The fourth embodiment of the utility model is as follows:
referring to fig. 15 and 16, a speaker 3 includes a diaphragm 2, a voice coil 31, and a dome 1 according to the first or second embodiments, where the dome 1 is disposed on the diaphragm 2, and the voice coil 31 is disposed on one side of the diaphragm 2.
In an alternative embodiment, the substrate layer 12 of the dome 1 is disposed on a side of the diaphragm 2 near the voice coil 31, and the through hole on the substrate layer 12 can be used as a glue containing groove between the voice coil and the diaphragm, so as to enhance the fixing effect of the voice coil and the diaphragm.
In summary, according to the dome, the vibrating diaphragm and the loudspeaker provided by the utility model, the dome adopts the composite structure, and the through holes are formed in the substrate layer, so that heat in the rear acoustic cavity is conveniently dissipated through the through holes, the heat dissipation efficiency is improved, and meanwhile, the substrate layer is arranged on the heat dissipation layer with higher heat conduction coefficient, so that the heat conduction efficiency of the substrate layer is improved and the sealing of the dome is realized. The through hole design of the substrate layer correspondingly reduces the quality of the vibration system, and is beneficial to improving the performance sensitivity of the sounding unit. In addition, the distribution area of substrate layer through-hole can cover vibrating diaphragm internal fixation portion and voice coil loudspeaker voice coil, when substrate layer and vibrating diaphragm internal fixation portion or voice coil loudspeaker voice coil pass through the glue layer bonding, the through-hole can be as holding the gluey groove, strengthens the fixed effect of ball top and vibrating diaphragm internal fixation portion or voice coil loudspeaker voice coil, promotes the reliability of ball top.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. The dome is characterized by comprising a heat dissipation layer and a substrate layer;
the substrate layer is provided with a through hole;
at least one substrate layer is arranged on the single-side surface or the double-side surface of the heat dissipation layer.
2. The dome of claim 1, wherein the heat dissipation layer has a thermal conductivity greater than or equal to a thermal conductivity of the substrate layer.
3. The dome of claim 2, wherein the heat dissipation layer is a graphene material layer, a copper material layer, or an aluminum material layer.
4. A dome according to claim 1, wherein the through-hole is circular or polygonal in shape.
5. The dome of claim 1 wherein the number of through holes is a plurality and the through holes are uniformly distributed on the substrate layer.
6. A diaphragm comprising a diaphragm body and a dome according to any one of claims 1-5, said dome being disposed on one side of said diaphragm body.
7. The diaphragm of claim 6, wherein the diaphragm body includes a fixing portion, the fixing portion includes an inner fixing portion, the inner fixing portion is of a hollow structure, and the dome is disposed on one side of the inner fixing portion.
8. The diaphragm of claim 7, wherein the substrate layer of the dome is disposed on a side of the heat dissipation layer of the dome near the inner fixing portion.
9. A loudspeaker comprising a diaphragm, a voice coil and a dome as claimed in any one of claims 1 to 5, said dome being arranged on said diaphragm, said voice coil being arranged on one side of said diaphragm.
10. The loudspeaker of claim 9, wherein the substrate layer of the dome is disposed on a side of the diaphragm adjacent to the voice coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320381155.9U CN219981016U (en) | 2023-03-03 | 2023-03-03 | Ball top, vibrating diaphragm and loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320381155.9U CN219981016U (en) | 2023-03-03 | 2023-03-03 | Ball top, vibrating diaphragm and loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219981016U true CN219981016U (en) | 2023-11-07 |
Family
ID=88577357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320381155.9U Active CN219981016U (en) | 2023-03-03 | 2023-03-03 | Ball top, vibrating diaphragm and loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219981016U (en) |
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2023
- 2023-03-03 CN CN202320381155.9U patent/CN219981016U/en active Active
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